Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Kertch, Crimea pen., Crimea Oblast', Ukraine
- Formula
- Fe2+3(PO4)2·8H2O
- Size
- SmCabinet 6x3.5x4.5cm
- Tagged
- phosphate
Deep blue long bladed crystals to 2cm in a large open cavity from a sedimentary phosphate deposit.
- Availability
- Sold
- Locality
- Tomokoni mine, Cornelio Saavedraprov., Potosi, Bolivia
- Formula
- Fe2+3(PO4)2·8H2O
- Size
- Miniature 5x2x1.5cm
- Tagged
- phosphate
Sorry for the hideous photos! The subject, did not want to be sold. It is a choice Vivianite crystal with deep emerald color as seen in the last photo where the light is transmitted through the crystal. Surficially it look dark green in hand and best appreciated when held up to the sun or a strong light.
- Availability
- Sold
- Locality
- Siglo Viente mine, Llallagua, Bolivia
- Formula
- Fe2+3(PO4)2·8H2O
- Size
- Miniature 4.5x3.5x2cm
- Tagged
- phosphate
This is a very impressive specimen of Vivianite once in the collection of Friedrich Ahlfeld, the Father of Bolivian Geology. It was also in the collection of the late Bill Roberts, author of the Encyclopedia of Minerals.
The specimen features an excellent deep green Vivianite crystal to 1.4cm. There are several other crystals on the base matrix, but they are frosted over with mostly Pyrite but also Paravauxite and Childrenite. The Childrenite crystals are the brownish red sparkly balls in the photos. The Paravauxite are the light yellow to colorless bladed crystals.
